Search found 881 matches

by snacksthecat
Today, 15:29
Forum: Workshop
Topic: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)
Replies: 31
Views: 999

Re: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)

https://i.imgur.com/rBxk4Cj.png Last night I was trying to figure out how to integrate the speaker and volume knob into this project. The circuit is a bit over my head. Anyone out there feel like dropping some knowledge on me? I tried to make a schematic of what I see on the PCB. By the way, this s...
by snacksthecat
Today, 01:15
Forum: Keyboards
Topic: SKCC Broken Stem
Replies: 3
Views: 105

Re: SKCC Broken Stem

Here's a close up video. I recorded one without the macro lens and it came out much better. That's uploading now but I'll post once it's done. FRl0o4AFnLA Basically I think it's possible but I'm not positive, as I've always removed these switches. And by "always" I mean "the one time I had an SKCC b...
by snacksthecat
Today, 01:13
Forum: Keyboards
Topic: [Resolved] Help with an IBM XT, inputs random characters
Replies: 4
Views: 145

Re: Help with an IBM XT, inputs random characters

Cool, I'm glad you got it working. And thanks for posting the solution too. Now I know a new thing to look for.
by snacksthecat
Today, 00:40
Forum: Keyboards
Topic: SKCC Broken Stem
Replies: 3
Views: 105

Re: SKCC Broken Stem

Edit: nevermind. Revising my post
by snacksthecat
Yesterday, 23:43
Forum: Want to buy
Topic: WTB: Model F XT factory Cable
Replies: 5
Views: 142

Re: WTB: Model F XT factory Cable

I had a couple but tossed them out because they had turned to sticky black goo. As a tangential question, does anybody know how to restore old black plastic that has become sticky and nasty? I am thinking of some handles in particular, such as tools and umbrellas. Dust it with corn starch. Actually...
by snacksthecat
Yesterday, 23:26
Forum: News
Topic: Stuff you just bought
Replies: 1717
Views: 81768

Re: Stuff you just bought

I bought two of these: https://i.ebayimg.com/images/g/IMQAAOSwLw1bVjrL/s-l1600.jpg They use Alps integrated domes, I'm hoping someone can help me make a PCB and plate for these to use better Alps switches. This is an excellent guide. https://wiki.ai03.me/books/pcb-design I can also recommend some d...
by snacksthecat
Yesterday, 04:35
Forum: Workshop
Topic: Epson Q703C-AA Clean up and conversion
Replies: 38
Views: 1736

Re: Epson Q703C-AA Clean up and conversion

Haven't seen this thing in a while. Almost forgot that I was the proud owner of a working Epson QX-10 computer. My girlfriend is going to hate me when she sees I've pulled this huge thing back out of storage. 7h4JQ6cUHlA I have some good news and some bad news. The good news is the end of the video.
by snacksthecat
Yesterday, 00:47
Forum: Keyboards
Topic: [Resolved] Help with an IBM XT, inputs random characters
Replies: 4
Views: 145

Re: Help with an IBM XT, inputs random characters

Make sure the screw(s) that hold the controller board to the plate are not loose. It is most likely a grounding problem on the keyboard.

Sounds like you’re using a skater’s converter. Did you make it yourself? This could be another source.

Spoiler:
By “skater’s” I mean “soarer’s”
by snacksthecat
20 May 2019, 22:08
Forum: Workshop
Topic: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)
Replies: 31
Views: 999

Re: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)

Dumping this here for now, to read later. These are the patents that are on the sticker stuck to the plate.

Capacitive keyboard
https://patents.google.com/patent/US375 ... oq=3750113

Capacitive key for keyboard
https://patents.google.com/patent/US409 ... oq=4090229
by snacksthecat
20 May 2019, 16:38
Forum: Workshop
Topic: How to build your very own keyboard firmware
Replies: 708
Views: 154191

Re: How to build your very own keyboard firmware

Not sure if this is your exact problem but it is one issue. The rows setup you have is this: /* Row pin configuration * row: 0 1 2 3 4 5 7 * pin: F0 F1 F2 F3 F4 F5 F6 */ static void unselect_rows(void) { // Hi-Z(DDR:0, PORT:0) to unselect DDRF &= ~0b00101111; PORTF &= ~0b00101111; } but should be li...
by snacksthecat
20 May 2019, 06:13
Forum: Workshop
Topic: Xerox DocuT̶K̶LSaver: An Alps custom full sized compact build log
Replies: 44
Views: 1868

Re: Xerox DocuT̶K̶LSaver: An Alps custom full sized compact build log

These spacebars from PMK are really nice but why in the world do they have cherry mounts where the stab hooks go?! I took some hooks from the Matias stabilizer kit and cut the MX mounts off and glued them to two long-boy stab hooks. I needed the long ones because the only stabilizer wire I have of t...
by snacksthecat
20 May 2019, 03:15
Forum: Workshop
Topic: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)
Replies: 31
Views: 999

Re: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)

To go the full 9 yards, I lubed the switches. It's actually not very hard to take them apart. I decided to go with PTFE. I'm not sure how susceptible these switches are to dust but the opening for the slider is pretty large. But I could see wet lube working as long as you kept the board very clean. ...
by snacksthecat
19 May 2019, 20:57
Forum: Workshop
Topic: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)
Replies: 31
Views: 999

Re: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)

All of the pads you circled are on 2u keys or the enter key therefore i do not think they would have had any springs on them in the first case Oh lord, I think you're right. I keep forgetting this keyboard doesn't really use many stabilizers. It uses dummy switches with a double mount instead. Well...
by snacksthecat
19 May 2019, 20:33
Forum: Workshop
Topic: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)
Replies: 31
Views: 999

Re: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)

Well I figured out why those random keys aren't working. I was so caught up trying to look for a pattern of a bad column or row that I overlooked this very obvious cause. https://i.imgur.com/DcyJTvf.jpg In the picture I've circled four spots where there is no leaf spring. One of those spots is actua...
by snacksthecat
19 May 2019, 20:00
Forum: Workshop
Topic: How to build your very own keyboard firmware
Replies: 708
Views: 154191

Re: How to build your very own keyboard firmware

Hello I have been using the tutorial in this topic to configure a keyboard I built, I found it very well documented and it helped a lot. However I have a strange issue now that I loaded it in the teensy I used in my keyboard, The 4 first rows work perfectly but the lower ones act weird, when I type...
by snacksthecat
19 May 2019, 19:18
Forum: Workshop
Topic: Fixing the $10 Industrial M13
Replies: 4
Views: 250

Re: Fixing the $10 Industrial M13

Compgeke wrote:
19 May 2019, 08:53
Oh shit, stuff's falling out.
:lol: my sides

Good luck Compgeke! You've clearly got your work cut out for you.
by snacksthecat
19 May 2019, 19:10
Forum: Workshop
Topic: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)
Replies: 31
Views: 999

Re: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)

I was going through the patent numbers on the keyboard and found some interesting images. Probably won't help with the effort but its fun to look at. I will link it here: https://patents.google.com/patent/EP0063800A2/en https://patents.google.com/patent/US4090229A/en It also described the travel di...
by snacksthecat
19 May 2019, 01:26
Forum: Workshop
Topic: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)
Replies: 31
Views: 999

Re: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)

The pads are the sense. The controller going crazy and had to be shot thing is because you hadn't dialed it in yet and when the whole keyboard is instantaneously sending keypresses at startup, it shuts the input down as a protective measure, but you can still adjust the values. Then once you do and...
by snacksthecat
18 May 2019, 22:29
Forum: Keyboards
Topic: Adapting P70 Keyboard to PS/2
Replies: 8
Views: 215

Re: Adapting P70 Keyboard to PS/2

You confirmed with the continuity tester that each of the colors from the keypad cord correspond with those positions in your ps2 pinout image? I'll keep thinking but nothing is jumping out at me immediately. Do you have a teensy? Soarer's simple logic analyzer would be a good tool to test with if y...
by snacksthecat
18 May 2019, 22:21
Forum: Keyboards
Topic: Adapting P70 Keyboard to PS/2
Replies: 8
Views: 215

Re: Adapting P70 Keyboard to PS/2

Can you post the ps2 pinout picture you referred to in the OP?
by snacksthecat
18 May 2019, 22:12
Forum: Keyboards
Topic: Adapting P70 Keyboard to PS/2
Replies: 8
Views: 215

Re: Adapting P70

The first thing to check would be is it getting (enough) power? Do you have a multimeter? Open up the keyboard and look for all of the ICs (chips). Use your multimeter to measure the voltage by touching the probes to the pins indicated in the picture. https://i.imgur.com/BHzGaH8.png Each one should ...
by snacksthecat
18 May 2019, 19:46
Forum: Workshop
Topic: [Done] CommonSense controller - better capsense!
Replies: 410
Views: 29114

Re: [Done] CommonSense controller - better capsense!

Thanks DMA! The windows binaries are exactly what I needed to get up and running. Unfortunately I continued to tinker and didn't see your message until now, after I eventually got it to work :lol: . This is great though, since I didn't build a static version. I think the linux issues I was having wa...
by snacksthecat
18 May 2019, 19:38
Forum: Workshop
Topic: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)
Replies: 31
Views: 999

Re: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)

What I'm trying to figure out right now is which pins need to be treated as "rows" vs "cols" from the perspective of the firmware. This is what the mechanism on the looks like. https://i.imgur.com/0XuyEdL.jpg In DMA are are the columns sensing or strobing? Should the leaf spring be the one that is s...
by snacksthecat
18 May 2019, 18:19
Forum: Workshop
Topic: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)
Replies: 31
Views: 999

Re: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)

So I adjusted course and ditched my raspberry pi setup.

I gave another shot at the windows instructions, skipping the part about making a static Qt.

The FlightController software runs fine now if I run it in debug mode through the IDE.

I did a one key test and it's working!
by snacksthecat
17 May 2019, 22:58
Forum: Workshop
Topic: The "I don't know" keyboard w/ "beats me" switches
Replies: 10
Views: 398

Re: The "I don't know" keyboard w/ "beats me" switches

YESSSS :lol: You might even say, "Hell yes!" So I've done a few things since the last post. #1 - I made sure the keyboard functionally works. Like when you press a key there's continuity along the path. Should really have done this earlier. #2 - I made sure the crystal is working Not that I thought...
by snacksthecat
17 May 2019, 17:46
Forum: Workshop
Topic: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)
Replies: 31
Views: 999

Re: Fortune Systems looooong keyboard with Digitran capacitive switches (conversion)

I'm slowly starting to piece together the CommonSense stuff. I have some very basic questions, and maybe they're better suited for that thread but I feel out of place with my little "which wire do I connect here?" questions when everyone else in there seems to have a PhD in electrical engineering. S...
by snacksthecat
17 May 2019, 17:12
Forum: Workshop
Topic: The "I don't know" keyboard w/ "beats me" switches
Replies: 10
Views: 398

Re: The "I don't know" keyboard w/ "beats me" switches

I guess you put the middle membrane that separates the rows and the columns under the other two membranes, that causes all the keys to be electrically pressed. Membranes are not double-sided so you don't need to isolate them from the backplate. Ding ding ding! I don't know what you won yet but I'll...
by snacksthecat
17 May 2019, 02:14
Forum: Workshop
Topic: The "I don't know" keyboard w/ "beats me" switches
Replies: 10
Views: 398

Re: The "I don't know" keyboard w/ "beats me" switches

Oh no, I'm getting that horrible feeling I get when I start to realize I did something dumb.

I'll give someone a little prize if they can guess what it was.

Hint: what I did is mentioned somewhere in this thread
by snacksthecat
17 May 2019, 01:09
Forum: Workshop
Topic: The "I don't know" keyboard w/ "beats me" switches
Replies: 10
Views: 398

Re: The "I don't know" keyboard w/ "beats me" switches

Thing that is currently on my mind; is NKRO possible? Not with that membrane. But the membrane is in two parts (rows and columns) and a middle spacer-membrane. You could perhaps construct a custom circuit board (or membrane) that replaces the bottom membrane, on which each pad leads to a diode for ...

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